Hydraulic System
8.92
Model 644E-42/944E-42 Rev. 6/04
8.8.19 Frame Sway (Left), Stabilizer Circuit & Troubleshooting (SN 18461 and After)
(Refer to Section 8.8.55, “Frame Sway Circuit Description,” for a more detailed explanation of this circuit.)
Suction
Return
Load Sense
Pressure
Pilot Pressure
PUMP
HYDRAULIC
RESERVOIR
ATTACH
TILT
FRAME
EXT/RET
LFT/LWR
AUX
TRANS
ACCUMULATOR
CHARGE/SECONDARY
FUNCTION VALVE
LS
DRAIN P1
LSG
ACR
SW P
ACFEFCF PIL
PB
PBG
PPG
SW
MAIN CONTROL
VALVE
INLET
OUTLET
HYDRAULIC OIL
COOLER
FRAME SWAY
JOYSTICK
FRAME SWAY
CYLINDER
P
T
2
1
P
T
G1
STABILIZER
CYLINDER
CHECK VALVE
85 PSI (5,9 bar)
FTR
V
FTR
FTB
CHECK
VALVE
FITTING
CHECK
VALVE
FITTING
Ø .048
Ø .041
P Gauge
RETURN
FILTER
25 PSI
(1,7 BAR)
BYPASS
CHECK
VALVE
MU5531
Relief
Valve
Orifice, Part Of
Check Valve
Fitting
Orifice, Part Of
Check Valve
Fitting
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